US11906854B2 - Liquid crystal element, lighting apparatus - Google Patents

Liquid crystal element, lighting apparatus Download PDF

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Publication number
US11906854B2
US11906854B2 US17/623,121 US202017623121A US11906854B2 US 11906854 B2 US11906854 B2 US 11906854B2 US 202017623121 A US202017623121 A US 202017623121A US 11906854 B2 US11906854 B2 US 11906854B2
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United States
Prior art keywords
pixel
liquid crystal
substrate
pixel electrode
crystal element
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US17/623,121
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English (en)
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US20220229334A1 (en
Inventor
Yasuo Toko
Hiroshi TOZUKA
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Assigned to STANLEY ELECTRIC CO., LTD. reassignment STANLEY ELECTRIC CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TOZUKA, HIROSHI, TOKO, YASUO
Publication of US20220229334A1 publication Critical patent/US20220229334A1/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
    • F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/48—Variable attenuator
US17/623,121 2019-06-28 2020-06-15 Liquid crystal element, lighting apparatus Active 2040-11-24 US11906854B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019-121990 2019-06-28
JP2019121990A JP7345293B2 (ja) 2019-06-28 2019-06-28 液晶素子、照明装置
PCT/JP2020/023374 WO2020262066A1 (ja) 2019-06-28 2020-06-15 液晶素子、照明装置

Publications (2)

Publication Number Publication Date
US20220229334A1 US20220229334A1 (en) 2022-07-21
US11906854B2 true US11906854B2 (en) 2024-02-20

Family

ID=74061945

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/623,121 Active 2040-11-24 US11906854B2 (en) 2019-06-28 2020-06-15 Liquid crystal element, lighting apparatus

Country Status (5)

Country Link
US (1) US11906854B2 (zh)
EP (1) EP3992704A4 (zh)
JP (1) JP7345293B2 (zh)
CN (1) CN114008522B (zh)
WO (1) WO2020262066A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023085841A (ja) * 2021-12-09 2023-06-21 スタンレー電気株式会社 液晶装置、液晶装置の駆動方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06160875A (ja) 1992-11-20 1994-06-07 Seiko Epson Corp 液晶表示装置
JPH1144893A (ja) 1997-04-18 1999-02-16 Hyundai Electron Ind Co Ltd 液晶表示装置及びその製造方法
JP2005183327A (ja) 2003-12-24 2005-07-07 Stanley Electric Co Ltd 車両前照灯
US20090059152A1 (en) 2007-09-05 2009-03-05 Sony Corporation Liquid crystal display
EP3401591A1 (en) 2017-05-11 2018-11-14 Stanley Electric Co., Ltd. Lamp unit, vehicular lamp system
US20190063712A1 (en) 2017-08-24 2019-02-28 Stanley Electric Co., Ltd. Vehicle headlamp system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007123244A1 (ja) * 2006-04-24 2007-11-01 Sharp Kabushiki Kaisha 液晶表示装置
JP5149910B2 (ja) * 2008-01-10 2013-02-20 シャープ株式会社 アクティブマトリクス基板及び液晶表示装置
JP2011027886A (ja) * 2009-07-23 2011-02-10 Seiko Epson Corp 液晶装置の製造方法、液晶装置、電子機器
WO2011096276A1 (en) 2010-02-05 2011-08-11 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device
JP2012113215A (ja) * 2010-11-26 2012-06-14 Stanley Electric Co Ltd 液晶素子
JP6808335B2 (ja) * 2016-03-11 2021-01-06 株式会社ジャパンディスプレイ 液晶表示装置
CN106449652B (zh) 2016-09-26 2019-05-28 京东方科技集团股份有限公司 阵列基板及其制造方法、显示面板和显示设备

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06160875A (ja) 1992-11-20 1994-06-07 Seiko Epson Corp 液晶表示装置
JPH1144893A (ja) 1997-04-18 1999-02-16 Hyundai Electron Ind Co Ltd 液晶表示装置及びその製造方法
US6226057B1 (en) 1997-04-18 2001-05-01 Hyundai Electronics Industries Co., Ltd. Liquid crystal display having overlapped pixel electrodes and method for fabricating the same
JP2005183327A (ja) 2003-12-24 2005-07-07 Stanley Electric Co Ltd 車両前照灯
US20090059152A1 (en) 2007-09-05 2009-03-05 Sony Corporation Liquid crystal display
JP2009063696A (ja) 2007-09-05 2009-03-26 Sony Corp 液晶表示装置
EP3401591A1 (en) 2017-05-11 2018-11-14 Stanley Electric Co., Ltd. Lamp unit, vehicular lamp system
US20180328561A1 (en) 2017-05-11 2018-11-15 Stanley Electric Co., Ltd. Lamp unit, vehicular lamp system
US10408409B2 (en) 2017-05-11 2019-09-10 Stanley Electric Co., Ltd. Lamp unit, vehicular lamp system
US20190063712A1 (en) 2017-08-24 2019-02-28 Stanley Electric Co., Ltd. Vehicle headlamp system
JP2019040727A (ja) 2017-08-24 2019-03-14 スタンレー電気株式会社 車両用前照灯システム

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Extended European Search Report (EESR) dated Dec. 23, 2022, issued in counterpart European Application No. 20833071.2.
International Search Report (ISR) (and English translation thereof) dated Aug. 4, 2020, issued in International Application No. PCT/JP2020/023374.
Written Opinion dated Aug. 4, 2020, issued in International Application No. PCT/JP2020/023374.

Also Published As

Publication number Publication date
US20220229334A1 (en) 2022-07-21
JP2021009200A (ja) 2021-01-28
EP3992704A1 (en) 2022-05-04
CN114008522B (zh) 2024-03-12
CN114008522A (zh) 2022-02-01
JP7345293B2 (ja) 2023-09-15
EP3992704A4 (en) 2023-01-25
WO2020262066A1 (ja) 2020-12-30

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